Failure should be our teacher

In the long run, men hit only what they aim at. Therefore, they had better aim at something high. Normal is not something to aspire to, it is something to get away from. Whoever I am and whatever I am doing, some kind excellence is within my reach. When one door closes another opens. Expect that new door to reveal even greater wonders and glories and surprises. Feel yourself grow with every experience. And look for the reason for it One machine can do the work of fifty ordinary men. No machine can do the work of one extraordinary man.

If you are not fired with enthusiasm, you will be fired with enthusiasm. You cannot cross the sea merely by standing and staring at the water. Do not let yourself indulge in vain wishes. Failure should be our teacher, not our undertaker. Failure is delay, not defeat. It is a temporary detour, not a dead end. Failure is something we can avoid only by saying nothing, doing nothing, and being nothing. If you have a lemon, make lemonade. Do or do not. There is no try. Men who try to do something and fail are infinitely better off than those who try to do nothing and succeed.